MESON Chess Problem Database

Problem Display
PID: 16368 (K2Rb3/1p5Q/1b2p3/4nN2/N1PPk1B1/R7/4q1nB/3r4 w - - 0 1)

Sachsel, Robert

Chess, 1940

K2Rb3/1p5Q/1b2p3/4nN2/N1PPk1B1/R7/4q1nB/3r4

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Sd6#
    • 1...Bxd4
      • 2.Sd6#
    • 1...Ba5
      • 2.Sc5#
    • 1...Bc5
      • 2.Sxc5#
    • 1...Bc7
      • 2.Sc5#
    • 1...Bxd8
      • 2.Sc5#
    • 1...Sf4
      • 2.Sg3#
    • 1...Sd3
      • 2.Sc3#
    • 1...Sf7
      • 2.Se3#
      • 2.Sh4#
      • 2.Sh6#
      • 2.Se7#
      • 2.Sg7#
    • 1...exf5
      • 2.Bxf5#
      • 2.Qxf5#
  • Keys
    • 1.Qc7!
      • threat
        • 2.Qxe5#
      • 1...Bxd4
        • 2.Sd6#
      • 1...Bxc7
        • 2.Sc5#
      • 1...Sxc4
        • 2.Sg3#
      • 1...Sxg4
        • 2.Sg3#
      • 1...Sd3
        • 2.Sc3#
      • 1...Sf3
        • 2.Sg3#
      • 1...Sc6
        • 2.Sg3#
      • 1...Sg6
        • 2.Sg3#
      • 1...Sd7
        • 2.Qxb7#
      • 1...Sf7
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 5
  • Sets
    • R(a);SBLOCK,XP(E)::QAB(H)+S(G),DCHECK
    • B(f);SBLOCK,XP(E)::QAB(H)+S(G),DCHECK
    • B(f);N_GUARD::S(C)
    • B(f);N_GUARD::S(C),XB(f)
    • B(f);N_GUARD,XR(J)::S(C)
    • S(c);SBLOCK::QAB(H)+S(G),DCHECK
    • S(e);SBLOCK::S(C)
  • Actual
    • Q(H);
    • Threat
      • QAR1(H),XS(e)
    • Vars
      • B(f);SBLOCK,XP(E)::S(G)
      • B(f);N_GUARD,XQ(H)::S(C)
      • S(e);XP(D)::S(G)
      • S(e);XB(F)::S(G)
      • S(e);SBLOCK::S(C)
      • S(e);::S(G)
      • S(e);N_GUARD,S_CUTB(i)::QAB(H),XP(h)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).